Improvement in wagon-brake blocks



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HEMAN OROWELL, OF WASHINGTON CORNERS, CALIFORNIA.

Letters Patent No. 86,648, dated Februar/ry 9,1869.

IMPROYEMENT IN WAGON-BRAKE BLOCKS.

The Schedule referred to in these Letters Patent and making part of the same.

To all it may concern.-

Be it known that I, HEMAN GROWELL, of WashingA ton Corners, county of Alameda, State of California, have invented an Improved Brake-Block for Wagon- Wheels; and I do hereby declare the following' description and accompanying drawings are suicient to enable any person skilled in the art or science to which it most nearly appertains, to make and use my said invention `or improvements without further invention or experiment.

The nature of' my invention is to provide an improved brake-block for wagon-wheels, so constructed that the pieces against which the wheels rub, when worn out and rendered useless, may be changed, and new ones substituted.

The rubbing-bands, or strips, are held by clamps, the shauks of which pass through the brake-block, vwhere they are held and adjustedvby set-screws.

lo more fully explain my invention, reference is had to the accompanying drawings, and the letters marked thereon, of Which- Figure 1 is a front view;

Figure 2 is a side view; and

Figure 3, an ,endsectional view.

' Similar letters of reference indicate corresponding parts in each of these figures.

A represents the blockhaving transverse slots B B in its-face, made deep enough to admit theshoulder of the clip O, the Shanks of which pass through the block, where it is held by a thumb-screw, C', turning against washers countersunk in the block.

To the arms of the clip are attached longitudinal pieces, D D, with points, E E, extending downward at each end, so 'that when the adjustable brake-boards are plaeed'under the clips, and the thumb-screws are turned up, the points will sink into them and hold them fast.

brake-board, might answer very well for the purpose, provided snihcient pressure could be obtained by the set-screws.

For the construction of my brakcLblccks I-would recommend iron, made suficiently wide to admit the" broadest wagon-tires, and the longitudinal pieces far enough apart for the wheel to travel between without friction against their'sides.

The adjustable strips F F may be made of leather, wood, or metal, as `wide as the face of the brake-block, and be carried along the route inthe wagon of the teamster, and be changed, as occasion requires, by simply unscrewing the clips, and removing the worn-out piece, and inserting the end of a new one under the first clip and drawing it along under the other, when, by turning the set-screws up, the wagon is ready to proceed on its journey.

By this means I have an eiicient and simple brake: block, thereby saving much time and expense over the vordinary method of accomplishing the sameobject.

Having thus described my invention,

What I claim, and desire to secure by Letters Patent, is-

Oonfining the brake-boards, or strips F F, to the brake-block by the clips O C, provided with longitudinal pieces D D, having points E E, or the ends of the clips bent at right angles over the said strips, substantially as described. A In witness whereof, I have hereunto set my hand and seal. p

H. GROWELL. [n s.]

Witnesses C. W. M. SMITH, J. L. BOONE.

The ends of the clips, bent at right angles over the 

